JP7340949B2 - Vehicle jump warning device and warning information management system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vehicle jumping warning device and warning information management system for protecting workers from vehicles flying into the vehicle.

For example, when carrying out construction work on a designated lane of a road where vehicles such as automobiles travel, conical pylons, etc. are placed in the lane where the work is being carried out to prevent vehicles from entering. It is common to set an area.

Conventionally, Doppler radar equipped with a flat array antenna in the work area has been used as a warning device for vehicles to protect workers working in work areas that are installed in fixed locations and do not move from vehicles flying into them. This Doppler radar detects the data set in advance from the planar array antenna of vehicles traveling towards the work area in the lane in which the work area is installed, without detecting vehicles traveling in other lanes. Accurately detects the speed at a position a preset distance away, and when the speed of the vehicle is higher than the preset speed, a warning is issued to the worker, which may cause the vehicle to jump into the work area. There is a known configuration that warns about this (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2016-192145

However, the conventional vehicle jumping warning device described above can warn a worker working in a work area that is installed at a predetermined location and does not move about a vehicle jumping into the work area, but for example, , when working on the side of a road while moving along the road, such as when cleaning a road or installing road signs, or when working along a certain route within a relatively wide area such as a construction site for a large facility. This cannot be used to warn workers who are moving while working, such as when working while moving, that a vehicle will enter the work area.

The purpose of the present invention is to solve these problems, and the purpose is to provide a vehicle-jumping warning device that can protect workers who work while moving from being hit by a vehicle. and to provide a warning information management system.

The vehicle jumping warning device of the present invention includes a travelable traveling means and a planar array antenna, and is provided with settings set in advance from the planar array antenna of a vehicle mounted on the traveling means and traveling behind the traveling means. A pulse radar type Doppler radar capable of detecting speed at a position a distance away, and a speed of the vehicle at a position a set distance away from the planar array antenna detected by the Doppler radar is equal to or higher than a preset set speed. a monitoring unit that outputs a warning signal at a certain time; and a warning generation unit that issues a warning when the warning signal output from the monitoring unit is input; A collision buffer member is provided at the collision buffer member, and the Doppler radar is disposed on the collision buffer member .

Preferably, the vehicle jumping warning device of the present invention has the above-mentioned configuration and includes a radar azimuth adjustment device that can adjust the direction of the planar array antenna.

The vehicle jumping warning device of the present invention has the above-mentioned configuration, and includes a speed input section into which the speed of the traveling means is input, and the monitoring section is configured to move only a set distance from the planar array antenna detected by the planar array antenna. Preferably, a warning signal is output when the relative speed of the vehicle with respect to the planar array antenna at a remote location is equal to or higher than the set speed minus the speed of the traveling means input to the speed input section. .

In the vehicle jumping warning device of the present invention, in the above configuration, the warning generating section includes a blow generating device that is attached to a helmet and applies a blow to the helmet when the warning signal output from the monitoring section is input. It is preferable to have one.

In the vehicle jumping warning device of the present invention having the above configuration, it is preferable that the warning signal output from the monitoring section is wirelessly transmitted to the warning generating section.

Preferably, the vehicle jumping warning device of the present invention has the above configuration, and includes a set distance changing section that changes the set distance, and a set speed changing section that changes the set speed.

The warning information management system of the present invention includes a warning information receiving unit provided in a monitoring center, any of the above-mentioned vehicle jumping warning devices, and when a warning signal output from the monitoring unit is inputted wirelessly, a warning signal transfer device that transfers the warning signal to the warning information receiving unit via a warning signal transfer device, which is provided in the monitoring center and receives the warning signal received by the warning information receiving unit and position information of the warning signal transfer device. and management means for managing the information in association with each other.

According to the present invention, it is possible to provide a vehicle jumping warning device and a warning information management system that can protect workers who work while moving from being hit by a vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram schematically showing an example of use of a vehicle jumping warning device according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing a case where a Doppler radar is disposed above a collision buffer member provided at the rear of an automobile in the vehicle jumping warning device shown in FIG. 1; FIG. 2 is an explanatory diagram showing a case where a Doppler radar is disposed inside a collision buffer member provided at the rear of an automobile in the vehicle jumping warning device shown in FIG. 1; FIG. 2 is a perspective view showing the Doppler radar shown in FIG. 1 together with a radar orientation adjustment device. 2 is a block diagram of the vehicle jumping warning device shown in FIG. 1. FIG. 6 is an explanatory diagram showing details of the setting board shown in FIG. 5. FIG. It is an explanatory view showing a tilt function of a radar direction adjustment device. FIG. 3 is an explanatory diagram showing a panning function of the radar azimuth adjustment device. (a) is an explanatory diagram showing a state in which the Doppler radar is directed downward by the tilt function of the radar azimuth adjustment device when crossing a mountain, and (b) is an explanatory diagram showing a state in which the Doppler radar is directed downward by the tilt function of the radar azimuth adjustment device when crossing a valley. FIG. 1 is an explanatory diagram schematically showing the configuration of a warning information management system that is an embodiment of the present invention. 11 is a block diagram of the warning information management system shown in FIG. 10. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

The vehicle jumping warning device of the present invention can be used, for example, when performing work while moving along the road on the side of a road, such as road cleaning work or road sign installation work, or at construction sites for large facilities. It is used to warn workers who are moving while working, such as when working while moving along a certain route within a relatively large area, that a vehicle will jump into the work area. .

FIG. 1 shows a vehicle jumping warning device 1, which is an embodiment of the present invention, while moving along a roadside belt 2a of a road 2 while performing work such as cleaning work or installing road signs. When carrying out the work, there is a possibility that vehicles (automobiles) 3a and 3b traveling in the adjacent driving lanes 2b and 2c will enter the roadside strip 2a and jump into the work area 4 (the area where the worker 5 is working). If this occurs (Figure 1 shows a case where there is a possibility that the vehicle 3a may jump into the work area 4), the worker 5 is warned that the vehicle 3a may jump into the work area 4, and the vehicle 3a jumps into the work area 4. The case is shown in which it is used to protect a worker 5 from.

In this case, the vehicle jumping warning device 1 moves along the road 2 on the roadside strip 2a, and at a position a set distance L away from the rear, the vehicle jump warning device 1 moves on the roadside strip 2a toward the work area 4 at a speed equal to or higher than a predetermined set speed. When a vehicle 3 is detected approaching the work area 4 at a speed higher than the set speed at the relevant position, a warning is issued to the worker 5 working in the work area 4, and the worker 5 is alerted. It operates to prompt the person 5 to retreat outside the work area 4. Thereby, even if the vehicle 3a jumps into the work area 4, the worker 5 can be protected from the vehicle 3a jumping into the work area 4.

The vehicle jumping warning device 1 includes an automobile 10 as a traveling means, a Doppler radar 20, and a warning generating section 30.

The automobile 10 is driven by a driver 11 and can travel on roads 2, construction sites, etc. In the present embodiment, the vehicle 10 is located behind the worker 5 when the worker 5 moves along the roadside strip 2a of the road 2 and performs work such as cleaning the roadside strip 2a or installing road signs. This is a work support vehicle that travels along a roadside strip 2a at a predetermined speed and displays to following vehicles 3a and 3b that work is in progress. The automobile 10 may also be configured to have a display board or a warning light at the rear end to indicate that work is in progress.

A collision buffer member 12 having a substantially rectangular parallelepiped shape is provided on the right side of the rear portion of the automobile 10 . The automobile 10 that performs work while traveling on the roadside belt 2a is likely to be rear-ended by a vehicle on its rear right side near the driving lanes 2b and 2c. Therefore, by providing the collision buffer member 12 on the rear right side of the automobile 10, the collision buffer member 12 can effectively absorb the impact when the vehicle is rear-ended.

The Doppler radar 20 has a planar array antenna 22 attached to the outside of a square case 21 to form one unit, and is mounted on the automobile 10 so as to move together with the automobile 10. In this embodiment, as shown in FIG. 2, Doppler radar 20 is placed on collision buffer member 12 provided at the rear of automobile 10. Note that the Doppler radar 20 may be arranged inside the collision buffer member 12 provided at the rear of the automobile 10, as shown in FIG.

As shown in FIG. 4, the planar array antenna 22 has a flat antenna surface 22a, and is configured to include a large number of antenna elements (radiating elements) arranged in a grid pattern inside the antenna surface 22a.

As shown in FIG. 5, the Doppler radar 20 includes, inside a case 21, a radar control section 23 connected to a planar array antenna 22, an information processing section 24, a speed input section 25, a wireless transmission section 26, and a radar operation board 27. , a switching power supply 28 and a USB converter 29 for communication with an external device 40.

The Doppler radar 20 is of a pulse radar type, and by supplying power from the radar control unit 23 to each antenna element of the planar array antenna 22 under certain excitation conditions, it is possible to transmit power from the planar array antenna 22 in a direction perpendicular to its antenna surface 22a. It is possible to transmit highly directional pulse waves towards the target. Further, the Doppler radar 20 can receive reflected waves of the transmitted pulse waves using the planar array antenna 22.

Note that the Doppler radar 20 may emit a pulse wave of 24 GHz, but the frequency is not particularly limited, for example, it may emit a pulse wave of 19 GHz.

An AC 100V power connector 28a is connected to the switching power supply 28, and by connecting this power supply connector 28a to a power supply, the radar control unit 23, information processing unit 24, wireless transmission unit 26, and radar are connected via the switching power supply 28. Electric power is supplied to the operation board 27 and the like.

Further, when the Doppler radar 20 is shipped from the factory, an external device 40 such as a personal computer is connected to the USB converter 29, and various functions of the Doppler radar 20 are initialized.

As shown in FIG. 1, the Doppler radar 20 is arranged at the rear of the automobile 10, with the antenna surface 22a of the planar array antenna 22 facing toward the rear of the automobile 10 (opposite to the direction of travel). The operation of the Doppler radar 20 arranged in this manner is controlled by the radar control unit 23, and by masking of the pulse radar method, the Doppler radar 20 arranged in this way receives preset information from the planar array antenna 22 of the vehicle 3a running behind the automobile 10. The speed at a position separated by the set distance L can be detected. At this time, since the planar array antenna 22 emits highly directional pulse waves, the Doppler radar 20 can erroneously detect the speed of the vehicle 3b traveling in the travel lane 2b when the vehicle 10 is traveling on the roadside strip 2a. Only the speed of the vehicle 3a traveling toward the automobile 10 along the roadside belt 2a can be detected without detecting the speed of the vehicle 3a. That is, the pulse wave transmitted by the Doppler radar 20 has a directivity that is within the width of the roadside strip 2a at the set distance L. In this way, when the automobile 10 is traveling on the roadside strip 2a, the Doppler radar 20 detects only the vehicle 3a that is traveling on the roadside strip 2a behind the automobile 10, and uses its planar array antenna 22 as a detection target. It is possible to detect the speed at a position a set distance L away from the vehicle.

Note that the Doppler radar 20 detects the speed of the vehicle 3a using pulse waves (radio waves), so it can accurately detect the speed of the vehicle 3a even in bad weather conditions such as rain or snow. be able to.

Furthermore, as described above, in this embodiment, the Doppler radar 20 is disposed on the collision buffer member 12 provided on the rear right side of the automobile 10, which is likely to receive a rear-end collision with the vehicle 3a. 20, it is possible to accurately detect the speed and set distance L of the vehicle 3a that may rear-end the automobile 10, that is, the vehicle 3a that may jump into the work area 4.

Note that the Doppler radar 20 mounted on the automobile 10 is preferably placed on the collision buffer member 12 provided on the right side of the rear portion of the automobile 10 as described above. The position can be changed in various ways as long as the speed and set distance L of the vehicle 3a traveling can be detected.

The information processing section 24 is connected to the radar control section 23, and the speed of the vehicle 3a at a position a set distance L away from the planar array antenna 22, which is detected by the Doppler radar 20, is inputted via the radar control section 23. Further, the information processing section 24 has a monitoring section 24a as a functional block. The monitoring unit 24a transmits a signal to the wireless transmitter 26 when the speed of the vehicle 3a at a position a set distance L away from the planar array antenna 22 detected by the Doppler radar 20 is equal to or higher than a preset set speed V. It is designed to output a warning signal.

Here, since the Doppler radar 20 is mounted on the automobile 10, when the automobile 10 is traveling along the roadside strip 2a at a speed va, the speed of the vehicle 3a detected by the Doppler radar 20 is and the relative speed of the vehicle 3a, that is, the speed (v0-va) obtained by subtracting the speed va of the automobile 10 from the actual speed (ground speed) v0 of the vehicle 3a. Therefore, when the automobile 10 is traveling along the roadside strip 2a at a speed va, the speed v0 of the vehicle 3a at a position away from the planar array antenna 22 by the set distance L is equal to or higher than the preset set speed V. When detecting that (v0≧V), it is necessary to perform the detection in consideration of the speed va of the automobile 10.

Therefore, the vehicle jumping warning device 1 of the present embodiment is provided with a speed input section 25 into which the speed va of the automobile 10 is input, and the monitoring section 24a detects that the automobile 10 is traveling along the roadside strip 2a at the speed va. In this case, the speed (v0-va) of the vehicle 3a relative to the planar array antenna 22 at a position separated by the set distance L from the planar array antenna 22 detected by the planar array antenna 22 is input from the set speed V to the speed input section 25. The configuration is such that a warning signal is output when the input speed of the vehicle 10 is equal to or higher than the speed (V-va) minus the speed va. That is, when the speed va of the automobile 10 is input to the speed input section 25, the monitoring section 24a corrects the set speed to (V-va) based on the speed va of the automobile 10 input to the speed input section 25. , is configured to output a warning signal to the wireless transmitter 26 when the speed (v0-va) of the vehicle 3a detected by the planar array antenna 22 is equal to or higher than the corrected set speed (V-va). ing. As a result, even when the vehicle 10 is traveling, the actual speed (ground speed) v0 at a position separated by the set distance L from the planar array antenna 22 of the vehicle 3a approaching the work area 4 is set to the predetermined value. It is possible to accurately detect that the vehicle 3a is at speed V or higher and is at risk of jumping into the work area 4.

The speed va of the automobile 10 input to the speed input section 25 can be a certain fixed value. For example, when the vehicle 10 travels along the roadside strip 2a at a constant speed and the worker 5 performs work while moving in front of the vehicle 10, the above-mentioned speed may be input as a fixed value to the speed input section 25. I can do it. In this case, the corrected set speed becomes a fixed value, and the speed of the vehicle 3a detected by the planar array antenna 22 is compared with the fixed value.

The speed va of the vehicle 10 inputted to the speed input section 25 may be the actual speed of the vehicle 10 detected by a speed sensor or the like. In this case, the corrected set speed becomes a fluctuation value that changes according to changes in the speed of the automobile 10, and the speed of the vehicle 3a detected by the planar array antenna 22 is compared with the fluctuation value. According to this configuration, even if the speed of the vehicle 10 changes, the actual speed (ground speed) v0 of the vehicle 3a approaching the work area 4 at a position separated by the set distance L from the planar array antenna 22 is It is possible to accurately detect that the speed is equal to or higher than the predetermined set speed V.

When receiving a warning signal from the information processing section 24, the wireless transmitting section 26 transmits the warning signal wirelessly to the warning generating section 30.

The warning generating unit 30 receives a warning signal wirelessly transmitted from the wireless transmitting unit 13 in the wireless receiving unit 31, and issues a warning to the worker 5 when the warning signal is received. That is, when the monitoring unit 24a detects that the speed of the vehicle 3a at a position separated by the set distance L from the planar array antenna 22 detected by the Doppler radar 20 is equal to or higher than the preset set speed V, the wireless A warning signal is transmitted from the transmitter 26 to the warning generator 30, and the warning generator 30 issues a warning to the worker 5.

Note that the wireless communication of the warning signal between the wireless transmitter 26 and the wireless receiver 31 includes, for example, short-range wireless communication such as Zigbee (registered trademark), Bluetooth (registered trademark), or LPWA (Low Power, Wide Area). It is possible to employ wireless communication based on various standards or methods, such as specific low power wireless communication such as .

In this embodiment, the warning generating section 30 includes an information processing section 32 and a blow generating device 33. The information processing unit 32 is provided between the wireless receiving unit 31 and the impact generating device 33, and the impact generating device 33 is attached to a helmet 50 that the worker 5 wears on his head. When the wireless receiving section 31 receives the warning signal, the warning signal is processed by the information processing section 32, and the impact generating device 33 is activated by a command from the information processing section 32. When the impact generating device 33 is activated, a impact is applied to the helmet 50 by the impact generating device 33, and the worker 5 can recognize the warning that there is a risk of being jumped into the vehicle 3a by the vibration and impact sound caused by the impact. .

In this way, by configuring the warning generating unit 30 to include the impact generating device 33, it is possible to reliably warn the worker 5 even in environments where there is a lot of noise due to the sound of vehicles running, such as on a highway. can be recognized.

Further, as described above, by using the configuration in which the warning signal output from the monitoring unit 24a is wirelessly transmitted to the warning generating unit 30 using the wireless transmitting unit 26 and the wireless receiving unit 31, the warning signal output from the monitoring unit 24a is transmitted to the warning generating unit 30 by wireless. Even if the operator 5 is configured to wear the alarm, the operator 5 can be effectively made aware of the warning without impairing the workability of the operator 5.

The warning generating unit 30 is configured, for example, as a wristwatch-type terminal worn on the arm (wrist) of the worker 5, and when a warning signal is input, a vibration generating unit is activated to generate vibrations. Various configurations can be adopted as long as the configuration allows the operator 5 to recognize the warning. Further, the warning generating unit 30 may be a siren, a revolving light, a flashlight, a warning buzzer, etc., which is attached to the vehicle 10 instead of the worker 5 and generates a warning to the worker 5. It may be a combination of two or more.

In addition to the worker 5 working in the work area 4 set on the roadside strip 2a, the driver 11 of the automobile 10 is also provided with a warning generator equipped with a helmet 50 and a blow generator 33 similar to the worker 5. It is preferable to install 30. Thereby, the driver 11 of the automobile 10 can be made aware of the warning that the vehicle 3a may jump into the automobile 10, and the driver 11 can be protected from the vehicle 3a jumping into the vehicle 10.

The vehicle jumping warning device 1 may be configured to include, in addition to the warning generating section 30, a warning device that issues a warning to a vehicle 3a that is likely to jump into the work area 4. In this embodiment, a warning light 60 is provided on the case 21 of the Doppler radar 20 as a warning device. By having a configuration including a warning device, it is possible to warn the driver of the vehicle 3a that there is a risk of jumping into the work area 4, and to prevent the vehicle 3a from jumping into the work area 4. can.

The vehicle jumping warning device 1 having the above-mentioned configuration has a warning generating section 30 attached to the helmet 50 of the worker 5 working in the work area 4, while the vehicle 10 is moving along the road 2 on the roadside strip 2a. , monitors the presence or absence of a vehicle 3a running on the roadside strip 2a toward the work area 4 at a predetermined set speed or higher at a position a set distance L backward from the planar array antenna 22, When the vehicle 3 approaching the work area 4 at a high speed is detected, the warning generator 30 of the worker 5 working in the work area 4 generates a warning, thereby preventing the vehicle 3a from jumping into the work area 4. person 5 can be protected.

That is, when the vehicle 3a traveling on the roadside belt 2a reaches a position separated by the set distance L from the planar array antenna 22, the speed of the vehicle 3a at the position is detected by the Doppler radar 20. If the detected speed of the vehicle 3a is equal to or higher than a preset speed, the monitoring section 24a outputs a warning signal, and the warning generating section 30 is activated to issue a warning to the worker 5.

Here, the position where the Doppler radar 20 detects the speed of the vehicle 3a, that is, the set distance L, and the speed of the vehicle 3a, which is the threshold value at which the monitoring unit 24a issues a warning signal, that is, the set speed are the positions at which the vehicle 3a is at the set distance L. The value is set to a value that allows the worker 5 who has received the warning issued by the warning generator 30 to retreat to a safe place outside the work area 4 before reaching the work area 4 and jumping into the work area 4 . Therefore, the Doppler radar 20 detects the vehicle 3a traveling at a speed that may cause the vehicle to jump into the work area 4, and the warning generating unit 30 issues a warning to the worker 5 based on the detection result. It is possible to protect the worker 5 from jumping into the work area 4 by the vehicle 3a by prompting the worker to retreat outside the work area 4.

As described above, in the vehicle jumping warning device 1 of the present embodiment, the Doppler radar 20 detects the vehicle 3a that is likely to jump into the work area 4, and the warning generating section 30 warns the worker 5 of the jumping into the work area 4. Therefore, the worker 5 can be protected from the vehicle 3a jumping into the work area 4.

Further, in the vehicle jumping warning device 1 of the present embodiment, the Doppler radar 20 is equipped with a planar array antenna 22, and the speed of the vehicle 3a at a position a predetermined distance L from the planar array antenna 22 is determined by masking using a pulse radar method. Since it is configured to be able to detect vehicles on the driving lanes 2b and 2c, even when work is being carried out on the roadside strip 2a of the road 2 where a plurality of driving lanes 2b and 2c are provided, the Doppler radar 20 can detect vehicles on the driving lanes 2b and 2c. To accurately detect only the speed of a vehicle 3a running on a roadside strip 2a without detecting the speed of a vehicle 3b, and to cause a warning generation unit 30 to generate a warning when the detected speed of the vehicle 3a is equal to or higher than a set speed. be able to. Therefore, jumping into the work area 4 of the vehicle 3a traveling on the roadside strip 2a where the work area 4 is provided can be detected with high accuracy.

Furthermore, in the vehicle jumping warning device 1 of the present invention, the Doppler radar 20 is mounted on the car 10 and does not need to be installed in the work area 4, so a road occupancy permit is obtained for installing the Doppler radar 20. It is not necessary and its operation is easy. Further, by using the automobile 10 as the traveling means, the Doppler radar 20 can be easily moved together with the worker 5 by the driver 11 driving the automobile 10, and its operation is easy.

The vehicle jumping warning device 1 operates the radar operation board 27 to determine the set distance L at which the Doppler radar 20 detects the speed of the vehicle 3a and the speed of the vehicle 3a that becomes the threshold at which the monitoring unit 24a issues a warning, that is, the set speed. can be changed.

As shown in FIG. 6, the radar operation board 27 includes a distance setting switch 27a as a set distance changing section, and by operating this distance setting switch 27a, the Doppler radar 20 detects the speed of the vehicle 3a. The position, that is, the set distance L can be changed. In this embodiment, the set distance L can be selectively changed to one of four distances: 7 m, 30 m, 40 m, and 50 m by operating the distance setting switch 27a. More specifically, each time the distance setting switch 27a is pressed, the selected set distance L can be sequentially changed in the order of 7 m, 30 m, 40 m, and 50 m. On the radar operation board 27, four LED lamps corresponding to each set distance L are arranged side by side on the left side of the distance setting switch 27a, and when the LED lamp corresponding to the selected set distance L lights up, the operator can recognize the selected set distance L.

Further, the radar operation board 27 is equipped with a speed setting switch 27b as a set speed changing section, and by operating this speed setting switch 27b, the speed of the vehicle 3a, that is, the threshold value at which the monitoring section 24a issues a warning can be set. Speed can be changed. In this embodiment, the set speed can be selectively changed to one of four speeds: 10 km/h, 50 km/h, 60 km/h, and 70 km/h by operating the speed setting switch 27b. I can do it. More specifically, each time the speed setting switch 27b is pressed, the selected set speed can be sequentially changed in the order of 10 km/h, 50 km/h, 60 km/h, and 70 km/h. On the radar operation board 27, four LED lamps corresponding to each set speed are arranged side by side on the left side of the speed setting switch 27b, and when the LED lamp corresponding to the selected set speed lights up, the operator can make a selection. The set speed can be recognized.

Note that the radar operation board 27 can be operated by opening the back cover provided on the opposite side of the case 21 from the planar array antenna 22; It is also possible to arrange the switch 27b and each LED lamp on the surface of the case 21. Further, when the Doppler radar 20 is abnormal, all four LED lamps corresponding to the distance setting switch 27a and four LED lamps corresponding to the speed setting switch 27b may be configured to blink.

As described above, by configuring the Doppler radar 20 to be able to change the set distance L for detecting the speed of the vehicle 3a and the set speed of the vehicle 3a, which is the threshold for the monitoring unit 24a to issue a warning, it is possible to prevent the vehicle from jumping into the vehicle. The warning device 1 can be applied to work areas 4 provided on various roads 2.

The vehicle jumping warning device 1 can be configured to include a radar azimuth adjustment device 70 that can adjust the direction of the planar array antenna 22. As the radar azimuth adjustment device 70, one having a configuration including a pan mechanism and a tilt mechanism can be adopted.

As shown in FIG. 4, in this embodiment, Doppler radar 20 is installed on radar azimuth adjustment device 70. The radar orientation adjustment device 70 includes a base plate 71 fixed to the collision buffer member 12, a tilt plate 72 placed over the base plate 71, and a pan plate 73 placed over the tilt plate 72.

The upper surface of the substrate 71 is provided with a concave curved surface 71a that curves with a predetermined curvature toward the front-back direction of the vehicle 10, and the lower surface of the tilt plate 72 is provided with a concave curved surface 71a that curves toward the front-rear direction of the vehicle 10 with the same curvature as the concave curved surface 71a. A convex curved surface 72a is provided. The substrate 71 and the tilt plate 72 are arranged in an overlapping manner with the concave curved surface 71a and the convex curved surface 72a in contact with each other. With this configuration, as shown in FIG. 7, the tilt plate 72 can be moved toward the rear side of the automobile 10 with respect to the substrate 71 while sliding the convex curved surface 72a with respect to the concave curved surface 71a of the substrate 71. With this, the direction of the Doppler radar 20 can be adjusted upward. On the other hand, by moving the tilt plate 72 toward the front side of the automobile 10 relative to the substrate 71 while sliding the convex curved surface 72a relative to the concave curved surface 71a of the substrate 71, the direction of the Doppler radar 20 is changed downward. Can be adjusted.

The pan plate 73 is rotatably connected to the tilt plate 72 by a rotation shaft (not shown) disposed perpendicularly to the center thereof. With such a configuration, as shown in FIG. 8, by rotating the pan plate 73 left and right with respect to the tilt plate 72, the direction of the Doppler radar 20 can be adjusted in the left and right directions of the automobile 10.

By having the radar orientation adjustment device 70, the orientation of the Doppler radar 20 can be adjusted as appropriate depending on the mounting position of the Doppler radar 20 on the vehicle 10 and changes in the conditions of the road 2 such as slopes and curves.

For example, as shown in FIG. 1, when the Doppler radar 20 is mounted on the right side of the rear part of the automobile 10, the orientation of the Doppler radar 20 is adjusted to the left by the pan function of the radar azimuth adjustment device 70. The irradiation direction of the radar emitted by the planar array antenna 22 can be set in such a direction that the vehicle 3a traveling on the roadside strip 2a is reliably captured while not capturing the vehicle 3b traveling on the travel lanes 2b and 2c. Further, the direction can be adjusted to the left or right as appropriate depending on the curve of the road 2, etc.

Further, as shown in FIG. 9(a), when the automobile 10 crosses a mountain, the tilt function of the radar azimuth adjustment device 70 adjusts the direction of the Doppler radar 20 downward, so that the radar emitted by the planar array antenna 22 It is possible to direct the irradiation direction toward the vehicle 3a traveling in front of the mountain. On the other hand, as shown in FIG. 9(b), when the automobile 10 crosses a valley, the tilt function of the radar azimuth adjustment device 70 adjusts the direction of the Doppler radar 20 upward, so that the planar array antenna 22 The irradiation direction of the emitted radar can be directed toward the vehicle 3a traveling in front of the valley. Even when the automobile 10 crosses over a mountain or valley, the orientation of the Doppler radar 20 can be adjusted in the left-right direction by the panning function of the radar azimuth adjustment device 70 as necessary.

As described above, by having a configuration in which the orientation of the Doppler radar 20 can be arbitrarily adjusted in the vertical direction and the horizontal direction by the radar azimuth adjustment device 70, the orientation of the Doppler radar 20 can be adjusted as necessary. This makes it possible to prevent vehicles 3a that are not likely to jump into the work area 4 from being erroneously detected, and to accurately detect only the vehicles 3a that are likely to jump into the work area 4 using the Doppler radar 20.

Furthermore, by using a device configured to include a substrate 71, a tilt plate 72, and a pan plate 73 as the radar azimuth adjustment device 70, it is possible to finely adjust the direction of the Doppler radar 20 with high precision. The Doppler radar 20 can accurately detect only the vehicle 3a that is likely to jump into the vehicle.

The radar azimuth adjustment device 70 can be configured to be remotely controllable using, for example, an adjustment device provided in the driver's seat of the automobile 10. As a result, while the driver 11 is driving the automobile 10, the driver 11 or a worker in the passenger seat can appropriately adjust the direction of the Doppler radar 20 using the adjustment device, which makes it easier to use the Doppler radar. It becomes possible to adjust the direction of the radar 20. In this case, it is preferable to have a configuration in which a camera is attached to the rear of the vehicle 10 and a rear image of the vehicle 10 taken by the camera is displayed on a monitor or the like provided in the driver's seat. Thereby, it becomes possible to adjust the direction of the Doppler radar 20 by remote control as necessary while checking the situation behind the automobile 10 using the monitor.

Note that the radar orientation adjustment device 70 can also be configured to manually adjust the orientation of the Doppler radar 20.

Further, the radar azimuth adjustment device 70 may also have a function of adjusting the position of the Doppler radar 20 in the height direction. In this case, the radar azimuth adjustment device 70 can have a configuration that allows the Doppler radar 20 to be moved vertically in a sliding manner with respect to the pan plate 73 or the like, for example. By configuring the radar orientation adjustment device 70 to be able to adjust the position of the Doppler radar 20 in the height direction, the Doppler radar 20 can more accurately detect the vehicle 3a that is likely to jump into the work area 4. Depending on the arrangement, the detection accuracy can be increased.

As shown in FIG. 10, a warning signal transfer device 80 is installed on the road 2 on which work is performed using the vehicle jumping warning device 1. The warning signal transfer device 80 transfers the warning signal output from the monitoring section 24a of the vehicle jumping warning device 1 to the warning information receiving section 91 provided in the monitoring center 90.

As shown in FIG. 11, the warning signal transfer device 80 includes a wireless receiving section 81, an information processing section 82, and a communication interface section 83 that performs wide area wireless communication.

The warning signal transfer device 80 can wirelessly receive the warning signal output from the monitoring unit 24a of the vehicle jumping warning device 1 at the wireless receiving unit 81. When the warning signal transfer device 80 receives the warning signal wirelessly, the information processing unit 82 processes the warning signal, connects the communication interface unit 83 to the Internet 100 wirelessly, and transfers the warning signal to the warning information via the Internet 100. It is transferred to the receiving section 91.

The monitoring center 90 is provided with a management means 92, which associates the warning signal transferred from the warning signal transfer device 80 and received by the warning information receiving section 91 with the position information of the warning signal transfer device 80, 92. The management means 92 manages in which area a warning has occurred by accumulating the above-mentioned information transferred from the vehicle-jumping warning device 1 used in work performed in many locations.

The warning information management system of this embodiment is composed of the vehicle jumping warning device 1, the warning signal transfer device 80, the warning information receiving section 91, and the management means 92. According to the warning information management system of the present embodiment, it is possible to analyze the shape of the road, topography, etc. where warnings are likely to occur based on the information accumulated in the management means 92, and based on this, the safety of the worker 5 can be determined. You can increase your sexuality.

It goes without saying that the present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit thereof.

For example, in the embodiment described above, the warning signal is transmitted wirelessly from the monitoring section 24a to the warning generating section 30, but the monitoring section 24a and the warning generating section 30 may be connected by wire. can. In this case, the warning signal output from the monitoring section 24a is input directly to the warning generation section 30 without going through the wireless transmission section 26.

Moreover, the Doppler radar 20 can also be configured to include a video camera having a recording function. This camera is a so-called drive recorder or other camera that, when subjected to an impact of a predetermined acceleration or higher, saves a moving image of a predetermined period of time before the impact or a video of a predetermined period of time before and after the impact. It is preferable to use By configuring the Doppler radar 20 to include such a camera, when the vehicle 3a jumps into the work area 4, the situation of the vehicle 3a jumping into the work area 4 can be recorded by the camera, and the cause of the jumping can be investigated. can be used.

Furthermore, in the embodiment described above, the Doppler radar 20 is disposed on the collision buffer member 12 provided on the rear right side of the automobile 10, but the Doppler radar 20 is not limited to this, and may be disposed on other parts. You can also do this.

Furthermore, in the embodiment, the radar orientation adjustment device 70 is configured to include the substrate 71, the tilt plate 72, and the pan plate 73, but the configuration is not limited to this, and the orientation of the Doppler radar 20 can be adjusted. It is also possible to adopt a different configuration or method as long as it is suitable.

1 Vehicle jumping warning device 2 Road 2a Roadside strip 2b Driving lane 2c Driving lane 3a Vehicle 3b Vehicle 4 Work area 5 Worker 10 Car 11 Driver 12 Collision buffer member 20 Doppler radar 21 Case 22 Planar array antenna 22a Antenna surface 23 Radar Control unit 24 Information processing unit 24a Monitoring unit 25 Speed input unit 26 Wireless transmission unit 27 Radar operation board 27a Distance setting switch (set distance changing unit)
27b Speed setting switch (setting speed change section)
28 Switching power supply 28a Power connector 29 USB converter 30 Warning section 31 Radio receiving section 32 Information processing section 33 Impact generating device 40 External device 50 Helmet 60 Warning light 70 Radar direction adjustment device 71 Board 71a Concave curved surface 72 Tilt plate 72a Convex curved surface 73 Bread board 80 Warning signal transfer device 81 Wireless receiving section 82 Information processing section 83 Communication interface section 90 Monitoring center 91 Warning information receiving section 92 Management means 100 Internet L Distance

Claims (7)

A movable means of travel,
A pulse radar-type Doppler radar that is equipped with a planar array antenna and is capable of detecting the speed of a vehicle mounted on the traveling means and traveling behind the traveling means at a position separated by a preset distance from the planar array antenna. and,
a monitoring unit that outputs a warning signal when the speed of the vehicle at a position a set distance away from the planar array antenna detected by the Doppler radar is equal to or higher than a preset set speed;
a warning generating unit that issues a warning when the warning signal output from the monitoring unit is input ;
The traveling means is a car,
A vehicle jumping warning device, characterized in that a collision buffer member is provided at the rear of the automobile, and the Doppler radar is disposed on the collision buffer member . The vehicle jumping warning device according to claim 1 , further comprising a radar azimuth adjustment device capable of adjusting the direction of the planar array antenna. comprising a speed input section into which the speed of the traveling means is input;
The monitoring unit is configured to detect a relative speed of the vehicle with respect to the planar array antenna at a position separated by a set distance from the planar array antenna detected by the planar array antenna, based on the set speed and the speed input unit. The vehicle jumping warning device according to claim 1 or 2 , which outputs a warning signal when the speed is equal to or higher than the speed of the means. Any one of claims 1 to 3 , wherein the warning generating unit includes a blow generating device that is attached to a helmet and applies a blow to the helmet when the warning signal output from the monitoring unit is input. The vehicle jump warning device described in . The vehicle jumping warning device according to any one of claims 1 to 4 , wherein the warning signal output from the monitoring unit is wirelessly transmitted to the warning generating unit. The vehicle jumping warning device according to any one of claims 1 to 5 , comprising: a set distance changing unit that changes the set distance; and a set speed changing unit that changes the set speed. A warning information receiving unit installed in the monitoring center,
A vehicle jumping warning device according to any one of claims 1 to 6 ;
a warning signal transfer device that transmits the warning signal to the warning information receiving unit via the Internet when the warning signal output from the monitoring unit is input wirelessly;
A warning information management system, comprising: a management means provided in the monitoring center, which manages the warning signal received by the warning information receiving section in association with position information of the warning signal transfer device.

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